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Topic Review (Newest First)

12-07-2016 11:07 PM

whinny

Question???

Later gator
Russ

12-05-2016 03:32 AM

Joe G

Here's an old Deutz hot bulb that sounds like it has an attitude problem....

12-04-2016 09:33 PM

boothboy

Ok here's how a Hot Bulb or Crude Oil engine works.
The same as any other internal combustion engine works.
Compressed fuel and ignition. Bang! The piston goes down open valve or port exhaust gases goes out. Just like your lawn mower.

But the vaporizing of the fuel mixture is a little different. No carburetor.

In case you missed it , no carburetor.

What they do have is a "Bulb" or Chamber where the fuel first starts it's way to blow the piston down. Heat is applied to a chamber where fuel is introduced. The heating (remember that blowtorch) superheats the fuel and when its sucked into the cylinder by rotating the flywheel and moving the piston it's ready to be compressed on the next stroke. Since it has been pre-heated it explodes more rapidly and the engine runs.
Through the cycle fuel is drawn back into the bulb and because the engine is hot the whole process is started again.

Anything I find remotely close is european and not commonly found in this country. The old John Deere's that ran on nearly anything combustible is the closest I find, but I don't recall them ever being able to convert from 4 to 2 cycle operation. I'm beginning to believe Dave is right...it's black magic.

This engine doesn't convert from 2 to 4cycle. It can be built either way.

I'll give you guys one last hint.

Blow torch.

BB

12-04-2016 09:44 AM

Too Many Projects

Quote:

Originally Posted by boothboy

Ok here's some hints.

This engine will run on anything combustible.
It has a ignition system that may use a spark plug or may not.
It can be either a 2cycle or 4cycle. So it has valves or can operate using ports.

Go back and look very closely at the beginning of the short video. You can see it's secret towards the top of the engine.

This is old technology but is still used today.

BB

Anything I find remotely close is european and not commonly found in this country. The old John Deere's that ran on nearly anything combustible is the closest I find, but I don't recall them ever being able to convert from 4 to 2 cycle operation. I'm beginning to believe Dave is right...it's black magic.

12-04-2016 09:38 AM

boothboy

Quote:

Originally Posted by 496CHEVY3100

Sounds like one of the boats in the old tarzan movies,

Sound great, doesn't it?

You might be thinking of the African Queen. Hepburn at the tiller and Bogie kicking the bejesus out or the boiler.

BB

12-04-2016 09:33 AM

boothboy

Ok here's some hints.

This engine will run on anything combustible.
It has a ignition system that may use a spark plug or may not.
It can be either a 2cycle or 4cycle. So it has valves or can operate using ports.

Go back and look very closely at the beginning of the short video. You can see it's secret towards the top of the engine.

This is old technology but is still used today.

BB

12-04-2016 09:33 AM

496CHEVY3100

Sounds like one of the boats in the old tarzan movies,

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